Aluminum
https://www.metalsupermarkets.com/differences-6061-and-7075-aluminum
First off is that the tensile strength of 7075-T6 is nearly double
that of 6061-T6. The shear strength of 7075-T6 is roughly 1.5 times that of
6061-T6. The former is substantially harder as well.
https://OzReport.com/1559220259
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